Eberspacher Thermostat

[oakleyb]

Noticed at the weekend that when i turn down the thermostat nothing happens, would anyone know if this is the only controlling part or could it be something on the main unit itself

Thanks

 

[pcatterall]

Is this a separate 'room thermo' or are you using the 'normal' thermo in the heater.?

 

[oakleyb]

i think seperate

 

[pcatterall]

Is the temperature level at the thermostat actually getting to the temperature where it will be activated? What kind of heat control is it ? The old ‘rheostat knob’ a digital timer or what?

Is it getting too hot for you? ( your lucky!!)
Did it work ok previously?

 

[pcatterall]

Is the temperature level at the thermostat actually getting to the temperature where it will be activated What kind of heat control is it ? The old ‘rheostat knob’ a digital timer or which?
Is it getting too hot for you? ( your lucky!!)
Did it work ok previously?

 

[Alpha22]

Different Eber controls work in very different ways. Very few are actually thermostats in the true sense of the word. Some can have a room thermostat plugged in.
The heater has a temperature sensor in the inlet. If your heater is configured to recycle the cabin air, eventually the heater will slow down and maintain a temperature as set on the control as it sees the room temperature increase. If it is constantly drawing in cold air... this will never happen and the heater will run flat out in a vain attempt to get the room up to temperature...... which of course it never will.

Also....

If you have a controller that actually IS a thermostat, it will override the inlet temperature sensor and use the one in the room. This does require a grey wire to be connected from the thermostat all the way back to the heater. Many of the secondhand heaters on the market (Ex BT van) do not have this wire in the loom and it will need to be added.

http://www.letonkinoisvarnish.uk/Eberspacher_Intro_1.html

Lots of late night reading in the "Fit Remote Sensor" section.

 

[GrahamM376]

ally IS a thermostat, it will override the inlet temperature sensor and use the one in the room. This does require a grey wire to be connected from the thermostat all the way back to the heater.

With the D3LC, the room temp sensor is connected to the loom behind the mini programmer - if that's what's fitted.

 

[Alpha22]

With the D3LC, the room temp sensor is connected to the loom behind the mini programmer - if that's what's fitted.

Apologies...... I was assuming D2/D4 Airtronic.... 'cause thats what I have!!!

 

[oakleyb]

thanks for the replies, i used to run it at full and then turn down to the min when cabin had warmed up. From there i would then turn off. I'm not sure that what i have in the cabin is a sensor more a controller - ie i turn that down and in turn the hot air also reduces and i think it would have done this even if the cabin was still cold

 

[GrahamM376]

thanks for the replies, i used to run it at full and then turn down to the min when cabin had warmed up. From there i would then turn off. I'm not sure that what i have in the cabin is a sensor more a controller - ie i turn that down and in turn the hot air also reduces and i think it would have done this even if the cabin was still cold

Problem is, there are so many models of Ebers and different controllers. Without knowing what you have it's hard to suggest what's wrong.

 

[pcatterall]

Problem is, there are so many models of Ebers and different controllers. Without knowing what you have it's hard to suggest what's wrong.

+1 describe or photo the set up!!

 

[Momac]

thanks for the replies, i used to run it at full and then turn down to the min when cabin had warmed up. From there i would then turn off. I'm not sure that what i have in the cabin is a sensor more a controller - ie i turn that down and in turn the hot air also reduces and i think it would have done this even if the cabin was still cold

I just have the simple rotary control and switch - sounds like you have the same.

I have been advised to run the heater on high setting for about 1 hour before switching it off.
When you run it on a low setting there will be some carbon build up that needs to be burned off.

Sounds like yours might need a good thrashing on full tilt - if it gets too hot inside the boat open a window.

 

[pcatterall]

Depending on your set up you will probably find that your temperature is being controlled from the thermostat in your heater. The required temperature may well be set by a control knob. At the back of the control knob you should have a red/slate and a brown/white lead.
With the heater on you can measure the voltage across these two leads. If memory serves it should be 2.6 volts when the knob is at max temp and reduce to 2.4 volts at minimum temp.
If that is the case then you can see that at least the control knob is doing what it is supposed to do.

 

[oakleyb]

Thanks, i'll give this a go